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- Title
Crescimento e fenologia de espécies de Jatropha durante a estação chuvosa.
- Authors
de Queiroz, Messias F.; Fernandes, Pedro D.; Neto, José Dantas; Arriel, Nair H. C.; Marinho, Francisco J. L.; Leite, Saulo F.
- Abstract
Jatropha curcas L., Jatropha mollissima (Pohl) Baill and Jatropha gossypiifolia L. are Euphorbiaceae with potential for biodiesel production and use in pharmaceutical and cosmetic industries. The aim of this study was to evaluate these species in terms of growth and phenology in a field experiment. In this study an experimental design of randomized blocks was adopted. The experimental plot had 18 plants and a useful plot area of 15 m2. In the phenological studies of plants the following phases were considered: establishment/vegetative growth, flowering, fruiting and ripening/harvest. The phenological stages of the species differed chronologically. Jatropha mollissima outgrew the others in plant height, while Jatropha curcas outgrew the others in stem diameter. The highest relative growth rates in plant height occurred during vegetative growth, with the highest values being recorded in Jatropha mollissima, while the greatest relative growth rates also in vegetative growth were recorded in Jatropha curcas. The lowest relative growth rates in plant height and stem diameter of the studied species coincided with the reproductive phases
- Subjects
JATROPHA; BIODIESEL fuels; PLANT phenology; PLANT growth; EXPERIMENTAL design; FRUIT development
- Publication
Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi, 2013, Vol 17, Issue 4, p405
- ISSN
1807-1929
- Publication type
Article
- DOI
10.1590/S1415-43662013000400008